Here is the first half of Jesus’ concluding statement of His doctrine from 3 Nephi 11:39: “Verily, verily, I say unto you, that this is my doctrine, and whoso buildeth upon this buildeth upon my rock, and the gates of hell shall not prevail against them.” If you want to be upon the Lord’s rock, you have to build upon His doctrine. What exactly is His rock? Matthew 16 contains critical information about it:
13 ¶When Jesus came into the coasts of Cæsarea Philippi, he asked his disciples, saying, Whom do men say that I the Son of man am?
14 And they said, Some say that thou art John the Baptist: some, Elias; and others, Jeremias, or one of the prophets.
15 He saith unto them, But whom say ye that I am?
16 And Simon Peter answered and said, Thou art the Christ, the Son of the living God.
17 And Jesus answered and said unto him, Blessed art thou, Simon Bar-jona: for flesh and blood hath not revealed it unto thee, but my Father which is in heaven.
18 And I say also unto thee, That thou art Peter, and upon this rock I will build my church; and the gates of hell shall not prevail against it.
Did you catch that? Did you see the similar language? The rock is not Peter. That would be idolatry. Peter is a man, after all, and the Nephites wouldn’t have had access to him. The rock must be constant and equally accessible by all of God’s children in every generation of time. Otherwise, God would be a changeable God.
The rock is revelation. It is the pure knowledge that comes from the Father, just like the knowledge that the Father gave to Peter. Not coincidentally, such revelation is promised earlier in 3 Nephi 11. Verse 35 promises that if you believe and follow the doctrine, the Father will bear record to you of Jesus through fire and the Holy Ghost. 2 Nephi 31:17 lets you know that it is the fire that actually causes the remission of sins. This is the rock that you must stand on.